Fountain pen



I June 18, 1929. J. P. NIKONOW FOUNTAIN PEN Filed March 22, 1928 90A" 71 mam INVENTOR Patented 1...... 18, 1929.

UNITED STATES JOHN P. NIKONOW, OF NEW YORK, N. Y.

FOUNTAIN PEN.

Application filed March 22, 1928. Serial No. 263,916.

' My invention relates to fountain pens and has aparti'cular reference to covering attachments or caps for fountain pens.

Ordinary fountain pens are usually provided with removable caps which are fitted on thebody of the pen on the operating end of it. In order to remove or to replace such cap it must be taken in one hand and the body in the other, so that two hands are required for such operation.

In no fountain pen I provide a-cap which is slida ly fitted on the bod of the pen. It provides an enclosure for t e operating end when moved to its extreme outer position,

and exposes the pen point if it is moved back. This movement can be accomplished by a single hand, holding the body in the palm of the hand and sliding the cap between-the thumb and forefinger. This arrangement permits much easier and quicker handling of the pen than with the removable cap.

My invention is more fully described in the accompanying specification and drawing in which- Fig. 1 is a sectional elevationof my pen with the cap in a closed position, Fig.2 is a similar view with the cap 0 en, Fig. 3 is an end view of a cap in a close position, Fig. 4 is the same for an open position, Fig. .5 1s a side view of the cover plate, and Fig. 6 is a view of a modified cover plate.

My fountain pen consists of a body 1 with a pen point 2 on its operating end. The body is tapered off toward the operating end and is rovided with a shoulder 3. A tubular cap 4 1s slidably fitted on the cylindrical portion'of the body 1 and is provided with a spring clip 5 inside which rests against the shoulder 3 when the ca is moved to its extreme closing position, t ereby preventing the cap from sliding off the body and retaining it in its proper closing position. A notch 6 is made 'in the body 1 for the clip 5 retaining the cap in its open position when moved to the rear as shown in Fig. 2. 'This notch is very small and does not prevent the capfrom being moved if suficient pressure is applied, serving only to keep'the cap from sliding on its own accord.

The tube 4 is recessed inside to make room for the spring clip 5 an open position as shown in Fig. 2. An outside clip 7 is attached to the cap for holding same on the ed eofacoatpocket.

recess 8 is provided in the upper o outer portion of the cap 4 'for a spring 9 which is riveted to the wall of the cap on one the pen ma end and with the other end presses against the cam-shaped end 13 of a cover 10. The shape of the cam is such that the spring 9 tends to keep the cover 10 down, pressed against a shoulder 11 inside of the cap 4. The tail end is pushed back, the cover 10, being pushed against the pen point 2, swings out and lays against the inside wall of the tube 4 as shown in F i 2 and viewed from the end in Fig. 4. The s oulder 11 is curvedto conform to the curvature of the cover 10. The cover rests at an angle as shown in Fig. 1 in order to reduce the angle of its movement. In orderto reduce itscurvature it may be made of a flexible material, such as rubber or celluloid, as shown in Fig. 6. In this case it will be forced against the wall by the pressure of the body 1 in an open position corresponding to'Fig. 1.

In a closed position spring 9 keeps the cover 10 tightly against the shoulder 11 thereby fully enclosing the operating end of the pen. The spring 5 keeps the cap 1n a closed position resting against the shoulder 3. In this condition the pen may be carried in a coat pocket fastened to the pocket edge with the en it is desired to use the pen it is removed from the pocket and opened with the same hand. For this purpose the rear end of the pen body is held in the palm of the hand with two or three fingers and the cap is gripped with the thumb and forefinger and moved into open position until the clip 5 engages the recess 6. The pen may be then used with the same hand and it is not necessary to assist with the other hand. In the same manner the pen may be closed and replaced in the pocket with one hand.

This arrangement represents an important advantage of my pen as the other hand may be used or holding notebook, paper etc., and be quickly removed from the pocket, use taking much less time than with ordinary pens. My standard fountain pens. The recess 6 maybe easily made inthe body of a pen. My cap will also operate without such a recess as there is sufiicient friction due to the pressure of the spring on the cover'lO to keep the cap in any position on the body 1 of the pen, especially and replaced, these operations.

cap may be also used with ordinary f if the cover 10 is made flexible as shown in Fig. 6.

I claim as my invention:

1. In a fountain pen, the combination with a tubular ea open on both ends and slidably fitted over t e body of a fountain pen, said cap being provided with a longitudinal removed into inoperating position for said fountain pen, covering'said pen point.

2. In a fountain pen, the combination with a tubular cap open on both ends and slidably fitted over the body of a fountain pen, an out- Wardly extending pocket formed in the wall of said cap near its outer end, a cover in said tubular cap near its outer end, a lug on said cover pivotally supported in said pocket, and a spring in said pocket adapted to press against said cover tending to keep it in a closedposition, said cover being adapted to be opened by the pressure from the pen point of said fountain pen when said cap is moved to ward the'rear end of said fountain pen;-

Signed at New York in the county of New York and State of NewYork this 19th day of March, A. D. 1928.

JOHN P. NIKONOW. 

